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0Single quantum dots spectromicroscopy: state of art under the Nobel prize 2023 spotlight
A.V. Naumov1-3*, A.I. Arzhanov1,2, I.Yu. Eremchev1-3, M.G. Gladush1-3, P.A. Frantsuzov4, K.R. Karimullin1-3, M.A. Knyazeva1'2, K.A. Magaryan1-3, A.O. Tarasevich1-3, E.A. Podshivaylov4,
N.V. Surovtsev5
1-P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Troitsk Branch, Moscow, Troitsk, Russia 2- Moscow Pedagogical State University (MPGU), Moscow, Russia 3- Institute of Spectroscopy RAS, Moscow, Troitsk, Russia 4- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk, Russia 5- Institute of Automation and Electrometry SB RAS, Novosibirsk, Russia
* a_v_naumov@mail.ru; www.single-molecule.ru
The 2023 Nobel Prize in Chemistry has brought significant attention to the already booming field of physics and chemistry of semiconductor nanocrystals - quantum dots (QD) [1]. In fact one of the critical point in this field development was achievement to measure photoluminescence (PL) of single QDs. In this lecture we overview the works devoted to the synthesis, study of photophysical and spectral properties of QDs. The fundamental laws connecting the morphology of quantum dots with its optical-spectral characteristics are discussed, as well as some theoretical models that allow describing various effects and processes: the quantum-dimensional effect, local field effects [2], electron-phonon interaction [3], photoluminescence blinking [3,4] of single quantum dots. The results of original experimental and theoretical studies of the temperature dependences of the spectra of single colloidal quantum dots with a CdSe emitting core are presented, which made it possible to clarify the nature of the formation of the optical spectra (absorption, luminescence and Raman) of single quantum dots and their ensembles [5,6]. Some possible applications in quantum technologies will be also discussed [7].
The results presented in this lecture have been obtained within the state assignment of the Ministry of Education of The Russian Federation "Physics of nanostructured materials and highly sensitive sensorics: synthesis, fundamental research and applications in photonics, life sciences, quantum and nanotechnology" (theme No. - 124031100005-5).
[1] A.A. Rempel, et al, Quantum dots: modern methods of synthesis and optical properties, Russian Chemical Reviews 93 (2024) Rcr5114.
[2] M.G. Gladush, et al, Dispersion of Lifetimes of Excited States of Single Molecules in Organic Matrices at Ultralow Temperatures, Journal of Experimental and Theoretical Physics, 2019, 128, 655-663.
[3] E.A. Podshivaylov, et al, A quantitative model of multi-scale single quantum dot blinking, J. Mater. Chem. C, 2023,11, 8570-8576.
[4] I.Yu. Eremchev, et al, Detection of Single Charge Trapping Defects in Semiconductor Particles by Evaluating Photon Antibunching in Delayed Photoluminescence, Nano Lett. 2023, 23, 2087-2093.
[5] K.R. Karimullin, et al, Combined photon-echo, luminescence and Raman spectroscopies of layered ensembles of colloidal quantum dots, Laser Phys. 2019, 29, 124009.
[6] A.I. Arzhanov, et al, Photonics of Semiconductor Quantum Dots: Basic Aspects, PHOTONICS Russia 15, 622-641 (2021).
[7] A.I. Arzhanov, et al, Photonics of Semiconductor Quantum Dots: Applied Aspects, PHOTONICS Russia 16, 96-112 (2022).
